Apple Macbook Pro Aluminum 13-Inch Black Laptop Keyb Technical Guide - Page 43

2010-06-15 5. Does battery status indicate Yes the battery is recognized but not charging with all LEDs blinking? No 6. Does battery status indicate Yes battery charge and flash the next level 5 times? No 7. Does battery status indicate a Yes low battery with a LED flashing rapidly indicating initial charging of battery? No 8. Test with a known-good Yes battery. Is battery recognized and charging? No 9. Inspect customer battery Yes contacts and battery cable connector for corrosion or obstructions. No 10. Reseat battery harness at logic Yes board connector, and retest. Is battery recognized and charging? No 11. Battery status LEDs not Yes working - inspect button stuck or cable disconnect at logic board and reset SMC. No 12. Remove system battery and Yes connect and test a known- good battery status indicator assembly. Do LEDs indicate a battery not recognized chase No pattern? Go to step 8 and tag battery as a possible P10 candidate (P10) Go to step 6 Customer battery charging, check battery condition. Go to step 13 Flashing first LED only, go to step 7 No battery status LEDs on, go to step 11 Allow customer battery to charge to 1 LED on before checking battery condition. Go to step 13. Go to step 8 Replace customer battery (P10 not charging or P11 not recognized) P10 or P11 Go to step 9 Clear obstructions and X03 replace the battery harness cable if corroded and recheck. Go to step 10 Issue resolved by cable reseat. Check battery condition, go to step 13 Replace logic board M20 LED status now working. Go to step 3. Go to step 12. Replace customer battery X03 LED indicator assembly. Go to step 3 Replace customer logic board. M20 MacBook (13-inch, Aluminum, Late 2008) Symptom Charts - Startup and Power Issues 43